Improvement in grain-separators



J. GREEN. Grain Separator.

Patentd June 26, 1866.

N, PEYERS PhnlD-Lhholnp wr. Via-mum D. C.

JOHN GREEN, OF NORWALK, OHIO, ASSIGNOR TO HIMSELF JAMES W.

BARKER, OF THE SAME PLACE.

IMPROVEMENT IN GRAlN-SEPARATQRS.

Specification forming part of Letters Patent No. 55,952, dated June '46,1866.

To all whom it may concern:

Be it known that 1, JOHN GREEN, of Norwalk, Huron county, State of Ohio,have invented a new and Improved Grain-Separator; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification, in which- Figure 1 is a plan or top view of myinvention; Fig. 2, a side view of the same, partly in section Fig. 3, atransverse vertical sec tion of the same, taken in the line w 00, Fig.1.

Similar letters of reference indicate like parts.

This invention relates to a new and improved device for cleaning andseparating foreign substances from grain, and also separating one kindof grain from another, as oats from wheat, and also separatinggrass-seeds from grain.

The'object of this invention is is to obtain a device for the purposespecified which may be operated with facility and perform its work inthe most efficent manner and with but a moderate expenditure of power.

To this end the invention consists in the employment or use oftwo fansprovided with balance-wheels, and arranged in relation with shoesprovided with screws, all constructed and operating in the manner ashereinafter set forth.

A represents a framing, in which two rotary fan-boxes, B B, are placed,one above the other, as shown in Fig. 2. O U are the fans, which areconstructed with balance-wheels a, said wheels being of cast-iron, andcast either with grooves or notches to receive the ends of the wings I)of the fans, or cast with flanges, to which the wings may be bolted. Thebalancewheels are firm ly'keyed on the fan-shafts c c, and it will beseen that said wheels serve both as balance or iiy wheels, and also as ameans for securing the wings in position.

On one end of both fan-shafts c 0 there are keyed pinions (1 cl, intowhich a Wheel, D, gears, the latter being on a shaft, 0, provided with adriving-pulley, E.

I F represent the shoe, provided with screens, the shoe F being in theupper part of the framing A, and the shoe F in the lower part. The upperfan, (J, directs its blast through the upper shoe, F, and the lower fan,G, directs its blast through the lower shoe, F. These two shoes F F aresuspended at each side by means of two springs,ff, which admit of theshoes having a lateral shake motion communicated to them, which iseffected as follows: To the inner surface of one side of each shoe-box Gthere is secured a bracket, g, and these brackets have a vertical pin,h, at their outer ends, on which Tshaped levers H are fitted and worked,the pivots passing through the levers at the junction of the two arms 2'03 thereof. These levers are operated by rods 1, one end of which isconnected with the outer ends of the levers H, and the opposite endsconnected with the pihions d near their edges, so that said pinions willoperate like crank-pulleys. The inner ends of the arms .6 of the leversH are connected, by rods j, with the upper ends of inclined screens J J,and the outerends of the arms 6 are connected, by rods It, with one sideof the shoes F F.

By this arrangement it will be seen that the shoes F F and screensJ Jarevibrated from the pinions cl (2' on the fan-shafts c c, the shoes F Fhaving a lateral vibratory movement communicated to them, and thescreens J J having a longitudinal vibratory movement communicated tothem. Each shoe F F is provided With a series of screens, it" 13 placedone above the other, and the uppermost screen, 1, of each shoe at itsouter part is inclined downward from its center toward each side (seeFig. 3)

i to admit of the coarse foreign substances passing off through openingsm in the sides of the shoe-boxes, said substances being conveyed orcarried 01f by spouts if desired,

The grain is admitted into the upper shoe, F, from a hopper, K, placedon the framing A, and the shaft E is rotated by any convenient power,the shoes F F being vibrated laterally, and the screens J J vibratedlongitudinally, seed and other foreign substances passing olf from thesides of the upper screen, 11, of the shoe F, while the sound grainpasses through screen 0 upon the screen l underneath, and the screens a0,below r, are designed to be so constructed as to separate one kind ofgrain from another, such as oars from wheat, The grain passes oil fromthe lower screen, Z, upon the inclined screen J, through which the soundgrain passes (wheat, for instance) into a spout, L.

The grain is subjected to a blast from the fan 0 while passing throughthe shoe F, and all light foreign substances expelled from it, and thesubstances which pass down the screen J pass through the shoe J, and arethere subjected to another blast from the fan 0, the line seeds, cockle,850., passing through openings m in the sides of the shoe-box, and thegrain passing through the screen J into a box, M.

1 do not confine myself to any precise construction of the screens 2' ii in the shoes F F, forthey may be modified or varied as circumstancesmay require.

The great advantage consists in the doubleblnst arrangement, thebalance-wheels on the fan-shafts, which insure a uniform and even speedof the fans and a smooth movement of the shoes, and the manner ofoperating or communicating power to said parts from the driving-shaft,whereby a very compact device is obtained, and one which may be operatedwith a moderate expenditure of power. The inclined upper parts of theupper screens, 2 ,is also an important feature.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The two fans C O, in combination with the two shoes F F, operated bymeans of the gearing, connecting-rods, and levers from the driving-shaftof the machine, substantially as and for the purpose herein set forth.

2. The douhleinclined ends of the upper screens, '5, of the shoes F F,in combination with the side openings, m, in the shoe-boxes,substantially as and for the purpose set forth.

JOHN GREEN.

Witnesses SAML. VVILKINSON, R. T. RUST.

